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authorVijaya Mohan Guvva <vmohan@brocade.com>2013-11-21 13:37:46 +0400
committerJames Bottomley <JBottomley@Parallels.com>2013-12-19 19:39:05 +0400
commit7593e524254a8e477e28dc662ca27b8b0ab9f1d7 (patch)
tree855e14052f19968b92ec460b1ffa57821bdb4d87 /drivers/scsi/bfa
parent9781851f47a7fba2013f879f13cfdadfcdc879dc (diff)
downloadlinux-7593e524254a8e477e28dc662ca27b8b0ab9f1d7.tar.xz
[SCSI] bfa: Fix for bcu or hcm faa query hang
This patch set fixes the issue of brocade management utility hang (bcu/HCM) when faa attributes are queried from multiple application threads. Hang was due to race between the threads and completion handler corruption. Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/bfa')
-rw-r--r--drivers/scsi/bfa/bfa_core.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 520540a5fef6..e3f67b097a5c 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -1367,10 +1367,6 @@ bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
struct bfa_iocfc_s *iocfc = &bfa->iocfc;
bfa_status_t status;
- iocfc->faa_args.faa_attr = attr;
- iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
- iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
-
status = bfa_faa_validate_request(bfa);
if (status != BFA_STATUS_OK)
return status;
@@ -1378,6 +1374,10 @@ bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
if (iocfc->faa_args.busy == BFA_TRUE)
return BFA_STATUS_DEVBUSY;
+ iocfc->faa_args.faa_attr = attr;
+ iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
+ iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
+
iocfc->faa_args.busy = BFA_TRUE;
memset(&faa_attr_req, 0, sizeof(struct bfi_faa_query_s));
bfi_h2i_set(faa_attr_req.mh, BFI_MC_IOCFC,